A/C does not blow cold air?

2010 HONDA ODYSSEY
230,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MARKRYD
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I'm looking to diagnose the exact A/C issue (at least as much as possible or hear what to do next) with my vehicle listed above EX model (front and back A/C). I've reported my hopefully thoroughly adequate testing.
May 22, 2023 at 3:23 PM
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STRAILER
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The first thing we need to do is see if the system has enough refrigerant, here is a guide to help with that:

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

This guide can help as well:

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Does the compressor kick on when the A/C is at the coldest settings? Can you see the clutch engage?
May 23, 2023 at 9:58 AM
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MARKRYD
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Yes, the clutch definitely engages (visually confirmed). Also, I don't hear any bad sounds from the compressor. Thanks.
May 23, 2023 at 10:08 AM
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STRAILER
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I would check the out pipe from the firewall with the system on and if it is cold, I would replace the temperature actuator under the dash here is the location. Check out the images (below). Please let us know what you find.

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May 25, 2023 at 9:34 AM